logo




JAMB

WAEC

NECO

NABTEB

Contact


Click Here To Join Our Whatsapp Group

NECO GCE 2019 LIVE QUESTION AND ANSWER EXPO READY - CLICK HERE
WAEC 2020 WAEC LIVE QUESTION AND ANSWER EXPO READY - CLICK HERE

2019 NECO GCE TIMETABLE LIVE QUESTION AND ANSWER EXPO - CLICK HERE

WITH LEGITANSWER YOUR SUCCESS IS 100% SURE, WE ARE READY FOR 2020 JAMB CBT RUNS

Quick Contact
WHATSAP/SMS ONLY 09061831432


S/LEONE WASSCE PAGE

GHANA WASSCE PAGE

ANSWER PAGE


CONFIRMATION PAGE



« | »

2019 NABTEB BIOLOGY OBJ & THEORY VERIFIED ANSWERS

_*2019 NABTEB GCE NOV/DEC BIOLOGY OBJ & THEORY SOLUTION*_

Biology – Obj
1-10: BACBAACBCA
11-20: DBDBDADDDB
21-30: CCBCBBCADD
31-40: BBCBCDBABA
41-50: BAABBAACDC

(1a)
(i) Nucleus
(ii) Cytoplasm

(1b)
(i) A sexual reproduction e.g. Binary fission
(ii) Sexual reproduction e.g. Viviparous

(1c)
(i) Prophase: The prophase is divided into two, Early and late prophase. During early prophase, the chromosomes become visible as they contract and nucleolus shrinks. Centrioles are formed at opposite sides of the nucleus. Spindle fibres start to form and during the late prophase, the chromosomes become shorter and fatter. Each is seen to consist of a pair of chromatids joined at the centromere and nucleus disappear. Prophase ends with the breakdown of nuclear membrane

(ii) Metaphase: Metaphase also exists in early and late forms. During early metaphase, the chromosomes arrange themselves on the equator of the spindle and at late metaphase, the chromatids draw apart at the centromere region.

(iii) Telophase: Telophase stages is equally divided into early and late forms. During the early telophase, the cell starts to constrict across the middle. During the late telophase, the constriction continues. The nucleolus reform in each daughter cell. Spindle apparatus degenerates.

(2a)
• After pollination, the pollen grain absorbs a sugary liquid on the stigma, swells and germinates.

• The outer coat of the pollen grain, the ezine, splits. The pollen tube grows out and down inside the style.

• At the initial stage, the pollen grain has only one nucleus. Later, this nucleus divides into two. A larger tube nucleus and a smaller generative nucleus.

• The pollen tube grows into the ovule through the micropyle, and at the end of the pollen tube bursts. The two male nuclei are released into the embryo sec.

• One male nuclei fuses with the ovum to form a zygote.

(2bi)
(i) Stems
(ii) Leaves
(iii) Roots

(2bii)
Tropic movement is a type of response in which a part of a plant moves in response to a directional stimulus.

(2c)
(i) Chemotropism is growth in response to chemicals.
(ii) Phototropism is growth in response to light.
(iii) Hydrotropism is growth in response to water.

(5ai)
(i) It gives support to the body.
(ii) It protects important and delicate organs of the body.
(iii) It provides places for the attachment of muscles.
(iv) It gives shape to the body
(v) It helps to store important mineral salts such as calcium.
(vi) It aids in respiration.

(5aii)
(i) Exo Skeleton
(ii) Endo Skeleton
(iii) Hydrostatic Skeleton

(5bi)
An enzyme is an organic catalyst, usually portentous in nature, which promotes or speeds up chemical changes in living cells but are not themselves used up in the process.

(5bii)
(i) All enzymes are protein in nature.
(ii) Enzymes are usually involved in reversible reactions.
(iii) Each enzyme is specific in action. i.e. An enzyme of a group of enzymes deals with only one process.
(iv) Enzymes accelerate the rate of chemical reaction.
(v) Enzymes like any other catalyst act in very small quantities and catalyse large amount of substrate.

(5c)
The digestion of fats and oil in the duodenum is aided by a green alkaline liquid called bile which is secreted by the liver and stored in the gall bladder. The bile helps in the emulsification of fats, i.e. breaking down fats into tiny droplets. At the end of digestion in the duodenum the food now in liquid form called chyle passes to the ileum or small intestine.

(6ai)
Pollution is the release of toxic or harmful substances into the environment by their natural forces or man and other animals to an extent that causes biological damage to man and his resources.

(6aii)
*Water Pollutionn*
Control: Dumping of refuse or petrochemical by-product into rivers, seas or streams should be avoided.

(6bi)
(i) It leads to pollution.
(ii) It produces unpleasant odour.
(iii) It occupies land space.
(iv) It can cause respiratory disorder.
(v) It destroys plants and animals.

(6bii)
Provision of waste bin carriage where refuse will be disposed, after which it will be taken away after a specific period of time.

(6ci)
Conservation is the planned or controlled exploitation or judicious use of natural resources to ensure their continuous availability and to preserve the quality or original nature of the environment.

(6cii)
Establishment of Zoo: That is the keeping of wildlife or wild animals in a cage in a zoological garden.

Tags: , ,

Categories: Nabteb

There is love in sharing

0 Responses

Leave a Reply

« | »




Jupeb, Jupeb 2019/2020 Chemistry ‹Questions, 2019 Chemistry Jupeb Questions, Jupeb 2019 Chemistry Questions, Jupeb 2019 Chemistry Answers, Jupeb 2019 Chemistry Runz, Jupeb 2019 Chemistry Expo, Jupeb 2019 Chemistry Expo/Runz, 2019 Jupeb Chemistry Obj Answers, 2019 Jupeb Chemistry Theory Questions, 2019 Jupeb Chemistry Obj And Theory Answers, 2019 Jupeb Chemistry Questions, Gidifans Jupeb 2019 Chemistry Answers, Examloaded Jupeb 2019 Chemistry Answers, Real Jupeb 2019 Chemistry Answers, Expoloaded Jupeb 2019 Chemistry Answers, Verified Jupeb 2019 Chemistry Questions, Free Jupeb 2019 Chemistry Answers., Jupeb, Jupeb 2019/2020 Chemistry ​Questions, 2019 Chemistry Jupeb Questions, Jupeb 2019 Chemistry Questions, Jupeb 2019 Chemistry Answers, Jupeb 2019 Chemistry Runz, Jupeb 2019 Chemistry Expo, Jupeb 2019 Chemistry Expo/Runz, 2019 Jupeb Chemistry Obj Answers, 2019 Jupeb Chemistry Theory Questions, 2019 Jupeb Chemistry Obj And Theory Answers, 2019 Jupeb Chemistry Questions, Gidifans Jupeb 2019 Chemistry Answers, Examloaded Jupeb 2019 Chemistry Answers, Real Jupeb 2019 Chemistry Answers, Expoloaded Jupeb 2019 Chemistry Answers, Verified Jupeb 2019 Chemistry Questions, Free Jupeb 2019 Chemistry runs, 2019/2020 neco runz runs, neco 2019/2020 answer verified" 2019/2020 waec gce runz, waec runz, waec gce runz, runz for waec and neco, nabteb runz, 2019/2020 nabtbe runs help, 2020 jamb cbt runz, jamb cbt runs, cbt runz, cbt 2020 runz , waec time table 2020/2019, waec gce 2019/2020 gce time table runz, examorigin.com.ng, examgreat.net, examkey.net, 2019 NECO EXPO, 2019 NECO ANSWERS, NECO 2019 EXPO, 2019 NECO ANSWERS, FREE NECO EXPO, FREE EXPO ON NECO, NECO 2019 EXPO FOR FREE, FREE 2019 NECO ANSWERS, 2019 NECO QUESTIONS, 2019 NECO ANSWERS, 2019 NECO EXPO ANSWERS,2019 NECO ANSWERS, 2019 NECO RUNS, FREE 2019 NECO ANSWERS, 2019 NECO RUNS, 2019 NECO ANSWER, 2019 NECO EXPO, 2019 NECO QUESTIONS, 2019 NECO QUESTIONS, NECO EXPO ANSWERS,2019 NECO EXPO, NECO 2019 ANSWERS, NECO 2019 ANSWER, NECO 2019 ANSWERS, NECO 2019 RUNZ, NECO 2019 ANSWERS, NECO 2019 EXPO, NECO ANSWERS 2019. 2019 NECO QUESTION AND ANSWERS | 2019 NECO ANSWER | 2019 NECO QUESTION AND ANSWERS | 2019/2020 NECO EXPO WEBSITE | 2019/2020 NECO ANSWERS | NECO ANSWER 2019 | NECO QUESTIONS 2019 | 2019 NECO ANSWER FOR ALL SUBJECTS | CHOCKS CONFIRMED ANSWERS FOR BIOLOGY MATHS ENGLISH CHEMISTRY ACCOUNTING COMMERCE GEOGRAPHY FISHERY PHYSICS ECONOMICS HISTORY COMPUTER CIVIC EDUCATION PHYSICS PRACTICAL BIOLOGY PRACTICAL BIOLOGY PRACTICAL PHYSICS PRACTICAL GOVERNMENT HISTORY CIVIC EDUCATION LITERATURE ECONOMICS FOOD AND NUTRITION ANIMAL HUSBANDRY DATA PROCESSING OFFICE PRACTICE TOURISM MATHEMATICS AGRIC SCIENCE PRACTICAL GEOGRAPHY PRACTICAL PHYSICAL EDUCATION 2019 NECO SSCE EXPO | 2019 NECO Exam Runz, NECO 2019 Runs, NECO 2019 Expo Site, Exam Runs, NECO 2019/2020 Runs 100% Correct Expo, NECO 2019 100% Real Expo / Runz, Best NECO 2019 Expo Site 2019 NECO EXPO | 2019 NECO RUNZ | 2019/2020 NECO QUESTION AND ANSWER | 2019 NECO RUNS | 2019 NECO SSCE EXPO ALL SUBJECTS QUESTION AND ANSWERS. 2019 NECO EXPO | 2019 NECO RUNZ |2019 NECO TIMETABLE |2019 NECO SPECIMENS | 2019/2020 NECO QUESTION AND ANSWER | 2019 NECO RUNS | 2019 NECO SSCE EXPO ALL SUBJECTS QUESTION AND ANSWERS 2019 NECO EXPO | 2019 NECO RUNZ | 2019/2020 NECO QUESTION AND ANSWER | 2019 NECO RUNS | 2019 NECO SSCE EXPO ALL SUBJECTS QUESTIONS 2019 NECO EXPO | 2019 NECO RUNZ | 2019/2020 NECO QUESTION AND ANSWER | 2019 NECO RUNS | 2019 NECO SSCE EXPO ALL SUBJECTS QUESTION AND ANSWERS AND ANSWERS 2019/2020 NECO Questions And Answers | 2019 May June Verified/Real Expo/Runz. NECO Assistance For Expo 2019/2020 Runz NECO RUNZ , Real NECO 2019 Expo site, Exam Runs, Free NECO Answers, Free , Free NECO Runs / Runz, NECO , NECO ,Trusted NECO , NECO 2019 Correct Expo, NECO ssce Runs, NECO Answers, NECO Exam Gce Assistance, NECO , Site, NECO Real Expo / Runz Download NECO SSCE QUESTIONS Below 2019 NECO RUNS RUNZ EXPO CHOCKS FOR 2019/19 SESSION NECO 2019/2020 Real Questions and Answers Expo Runz/Runs 2019 NECO Expo,2019/2020 NECO may/June ssce Real/Sure confirmed Questions/Answers/Expo/Runz 2019/2020 NECO Ssce Real/Confirmed Questions And Answers, Expo/Runz 2019/2020 NECO May/June Real Expo, Questions and Answers NECO 2019/2020 Questions/Answers /Expo 2019/2020 NECO Questions And Answers, Expo . 2019/2020 NECO Real/Confirmed Expo/Runz, Questions/Answers.Verified/sure 2019/2020 NECO Ssce may/June Question And Answers Expo/Runz. 2019/2020 NECO/Wassce Real Runz, Questions and Answers.2019/2020 NECO Expo, Questions and Answers. NECO 2019/2020 Questions and Answers Runz/Expo.2019/2020 NECO Ssce Expo. Verified 2019/2020 NECO subjects Questions/Answers, Expo/Runz. NECO 2019 Expo site, NECO Exam Runs, 2019 NECO Ssce Questions, 2019 NECO Answers, Verified , Trusted NECO , NECO 2019 Correct Expo, NECO RUNZ,NECO answers 2019 NECO answers for english NECO answers for mathematics 2019 NECO answers literature in english NECO answers for mathematics 2019 NECO answers 2019 NECO answers for biology 2019 NECO 2019 Answers,2019 NECO Expo,NECO 2019 Questions and Answers, Expo and Runs is finally out,Expo for NECO 2019 is Finally Out Today REAL NECO 2019 Questions and answers/EXPO Runz 2019 NECO 2019 Expo NECO Runs and Free Answers for 2019 Examination,Is NECO 2019 Free Expo Out,Is NECO 2019 Questions and Answers Released. NECO 2019/2020 Exam Expo – Runs – Chocks TAGS; NECO Exam Runz, NECO 2019 Runs, NECO 2019 Expo Site, Exam Runs, NECO 2019/2020 Runs 100% Correct Expo, NECO 2019 100% Real Expo / Runz, Best NECO 2019 Expo Site. 2019 NECO EXPO | 2019 NECO RUNZ | 2019 NECO EXPO | 2019 NECO EXPO/RUNS | 2019 NECO QUESTION AND ANSWERS, 2019 NECO Expo, 2019 NECO Runs, 2019 NECO Answers, 2019 NECO Questions NECO EXPO 2019: 2019 NECO EXAM EXPO RUNS | 2019 NECO EXPO ANSWERS/SITE 2019 WAEC EXPO, 2019 WAEC ANSWERS, WAEC 2019 EXPO, 2019 WAEC ANSWERS, FREE WAEC EXPO, FREE EXPO ON WAEC, WAEC 2019 EXPO FOR FREE, FREE 2019 WAEC ANSWERS, 2019 WAEC QUESTIONS, 2019 WAEC ANSWERS, 2019 WAEC EXPO ANSWERS,2019 WAEC ANSWERS, 2019 WAEC RUNS, FREE 2019 WAEC ANSWERS, 2019 WAEC RUNS, 2019 WAEC ANSWER, 2019 WAEC EXPO, 2019 WAEC QUESTIONS, 2019 WAEC QUESTIONS, WAEC EXPO ANSWERS,2019 WAEC EXPO, WAEC 2019 ANSWERS, WAEC 2019 ANSWER, WAEC 2019 ANSWERS, WAEC 2019 RUNZ, WAEC 2019 ANSWERS, WAEC 2019 EXPO, WAEC ANSWERS 2019. 2019 WAEC QUESTION AND ANSWERS | 2019 WAEC ANSWER | 2019 WAEC QUESTION AND ANSWERS | 2019/2020 WAEC EXPO WEBSITE | 2019/2020 WAEC ANSWERS | WAEC ANSWER 2019 | WAEC QUESTIONS 2019 | 2019 WAEC ANSWER FOR ALL SUBJECTS | CHOCKS CONFIRMED ANSWERS FOR BIOLOGY MATH ENGLISH CHEMISTRY ACCOUNTING COMMERCE GEOGRAPHY FISHERY PHYSICS ECONOMICS HISTORY COMPUTER CIVIC EDUCATION PHYSICAL EDUCATION 2019 WAEC SSCE EXPO | 2019 Waec Exam Runz, Waec 2019 Runs, Waec 2019 Expo Site, Exam Runs, Waec 2019/2020 Runs 100% Correct Expo, Waec 2019 100% Real Expo / Runz, Best Waec 2019 Expo Site 2019 WAEC EXPO | 2019 WAEC RUNZ | 2019/2020 WAEC QUESTION AND ANSWER | 2019 WAEC RUNS | 2019 WAEC SSCE EXPO ALL SUBJECTS QUESTION AND ANSWERS. 2019 WAEC EXPO | 2019 WAEC RUNZ |2019 WAEC TIMETABLE |2019 WAEC SPECIMENS | 2019/2020 WAEC QUESTION AND ANSWER | 2019 WAEC RUNS | 2019 WAEC SSCE EXPO ALL SUBJECTS QUESTION AND ANSWERS 2019 WAEC EXPO | 2019 WAEC RUNZ | 2019/2020 WAEC QUESTION AND ANSWER | 2019 WAEC RUNS | 2019 WAEC SSCE EXPO ALL SUBJECTS QUESTIONS 2019 WAEC EXPO | 2019 WAEC RUNZ | 2019/2020 WAEC QUESTION AND ANSWER | 2019 WAEC RUNS | 2019 WAEC SSCE EXPO ALL SUBJECTS QUESTION AND ANSWERS AND ANSWERS 2019/2020 Waec Questions And Answers | 2019 May June Verified/Real Expo/Runz. WAEC Assistance For Expo 2019/2020 Runz WAEC RUNZ , Real WAEC 2019 Expo site, Exam Runs, Free WAEC Answers, Free , Free WAEC Runs / Runz, Waec , Waec ,Trusted WAEC , WAEC 2019 Correct Expo, WAEC ssce Runs, WAEC Answers, WAEC Exam Gce Assistance, WAEC , Site, WAEC Real Expo / Runz Download WAEC SSCE QUESTIONS Below 2019 WAEC RUNS RUNZ EXPO CHOCKS FOR 2019/19 SESSION Waec 2019/2020 Real Questions and Answers Expo Runz/Runs 2019 Waec Expo,2019/2020 Waec may/June ssce Real/Sure confirmed Questions/Answers/Expo/Runz 2019/2020 Waec Ssce Real/Confirmed Questions And Answers, Expo/Runz 2019/2020 Waec May/June Real Expo, Questions and Answers Waec 2019/2020 Questions/Answers /Expo 2019/2020 Waec Questions And Answers, Expo . 2019/2020 Waec Real/Confirmed Expo/Runz, Questions/Answers.Verified/sure 2019/2020 Waec Ssce may/June Question And Answers Expo/Runz. 2019/2020 Waec/Wassce Real Runz, Questions and Answers.2019/2020 Waec Expo, Questions and Answers. Waec 2019/2020 Questions and Answers Runz/Expo.2019/2020 Waec Ssce Expo. Verified 2019/2020 Waec subjects Questions/Answers, Expo/Runz. Waec 2019 Expo site, Waec Exam Runs, 2019 Waec Ssce Questions, 2019 WAEC Answers, Verified , Trusted WAEC , WAEC 2019 Correct Expo, WAEC RUNZ,waec answers 2019 waec answers for english waec answers for mathematics 2019 waec answers literature in english waec answers for mathematics 2019 waec answers 2019 waec answers for biology 2019 waec 2019 Answers,2019 waec Expo,waec 2019 Questions and Answers, Expo and Runs is finally out,Expo for waec 2019 is Finally Out Today! REAL WAEC 2019 Questions and answers/EXPO Runz 2019 Waec 2019 Expo waec Runs and Free Answers for 2019 Examination,Is waec 2019 Free Expo Out,Is waec 2019 Questions and Answers Released. Waec 2019/2020 Exam Expo – Runs – Chocks TAGS; Waec Exam Runz, Waec 2019 Runs, Waec 2019 Expo Site, Exam Runs, Waec 2019/2020 Runs 100% Correct Expo, Waec 2019 100% Real Expo / Runz, Best Waec 2019 Expo Site. 2019 WAEC EXPO | 2019 WAEC RUNZ | 2019 WAEC EXPO | 2019 WAEC EXPO/RUNS | 2019 WAEC QUESTION AND ANSWERS, 2019 WAEC Expo, 2019 WAEC Runs, 2019 WAEC Answers, 2019 WAEC Questions WAEC EXPO 2019: 2019 WAEC EXAM EXPO RUNS | 2019 WAEC EXPO ANSWERS/SITE